Belt drive wheel for a toy building set



FIG. 1 is a top perspective view of the belt drive wheel for a toy building set showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view thereof, all sides being identical; and,

FIG. 5 is a front elevational view thereof. 

The ornamental design for a belt drive wheel for a toy building set, as shown and described. 